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Glass material with low loss and low piezoelectric coefficient d33 in high frequency band of 20-60 GHz

A glass material and low-loss technology, which is applied in the field of high-frequency low-loss and low-voltage electric coefficient glass materials and their preparation, can solve the problems of large high-frequency dielectric loss of substrates, poor product performance stability, and higher requirements for sintering processes. Achieve low dielectric constant, low dielectric loss, lower softening point temperature and the effect of dielectric constant

Active Publication Date: 2020-08-07
SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
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  • Application Information

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Problems solved by technology

The physical and chemical properties of the glass / ceramic system are mainly determined by the added ceramic phase, but the high-frequency dielectric loss of the substrate is large
The dielectric properties and loss properties of the glass-ceramic system are controlled by the type and quantity of precipitated crystals. This type of substrate material has very little residual glass phase after sintering and has excellent high-frequency properties, such as CaO-B 2 o 3 -SiO 2 The application frequency of glass-ceramics can reach 100GHz; however, the crystallization behavior of the glass-ceramic system has higher requirements on the sintering process, and the product performance stability is poor

Method used

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  • Glass material with low loss and low piezoelectric coefficient d33 in high frequency band of 20-60 GHz
  • Glass material with low loss and low piezoelectric coefficient d33 in high frequency band of 20-60 GHz
  • Glass material with low loss and low piezoelectric coefficient d33 in high frequency band of 20-60 GHz

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Embodiment Construction

[0021] Below in conjunction with embodiment further illustrate the present invention.

[0022] Embodiment 1-10 and comparative example:

[0023] Accurately weigh the raw materials according to the glass components shown in Table 1, dry mix them evenly, put the mixed raw materials into a platinum crucible, melt at 1200-1400°C for 2 hours, pour the molten glass into dry quenching Rapid cooling and quenching was carried out in the machine, and the obtained glass block was added with pure water of 2 times the quality of the glass and alumina grinding balls of 5 times the quality for ball milling and dispersion, dried and sieved to obtain Examples 1-10 and Comparative Examples glass powder.

[0024] Add 1.5wt% PVA by mass to the glass frits of Examples 1-10 and Comparative Example, dry press molding, and then sinter at 650° C. and keep warm for 2 hours to obtain the ceramic sheets of Examples 1-10 and Comparative Example.

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Abstract

A glass material with low loss and a low piezoelectric coefficient d33 in a high-frequency band of 20-60 GHz is prepared from 10-30 wt% of SiO2, 15-35 wt% of B2O3, 0-10 wt% of Al2O3, 20-40 wt% of MgO,8-30 wt% of CaO, 5-15 wt% of BaO, 0-5 wt of ZnO, 0-6 wt% of Na2O and 0-1 wt% of M2O3, wherein M is any one or more of In, Yb, La or Y. A ceramic chip prepared from the glass material has low dielectric constant and low dielectric loss in the high frequency band.

Description

technical field [0001] The invention relates to the technical field of glass materials for electronic ceramics, in particular to a high-frequency, low-loss and low-voltage electric coefficient glass material and a preparation method thereof. Background technique [0002] In recent years, 5G communication technology has created a huge demand for electronic components with high frequency and low loss characteristics in microwave and millimeter wave frequency bands. Glass materials with low loss and low dielectric constant have become a research hotspot, and have great application potential in high-frequency bands. [0003] Glass / ceramic system and glass-ceramic system are widely used LTCC substrate materials at home and abroad. The physical and chemical properties of the glass / ceramic system are mainly determined by the added ceramic phase, but the high-frequency dielectric loss of the substrate is large. The dielectric properties and loss properties of the glass-ceramic sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/068C03C3/066C03C12/00C03C4/16C04B35/20C04B35/626C04B35/622
CPCC03C3/068C03C3/066C03C12/00C03C4/16C04B35/20C04B35/626C04B35/622C04B2235/96C04B2235/656C04B2235/6567C04B2235/365
Inventor 宋锡滨艾辽东张伟奚洪亮
Owner SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
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